[英]Passing integer between scenes, iphone game sprite-kit
我有一个用户在游戏中选择等级的场景,然后我想切换到用户选择的等级的游戏场景。 我想创建具有正确级别的游戏场景,但要做到这一点,我需要传递一个整数,这是游戏场景的级别数,所以我知道要加载哪个级别。
我的问题是,我该如何做到这一点? 我查看了节点的userdata属性,但无法弄清楚如何使用它来完成我想要的。 任何帮助将深表感谢。
当您在关卡选择场景中调用[self.view presentScene:scene transition:transition]
,首先使用关卡编号设置新场景。 所以:
//GameScene.h
//This is the public interface for your game scene
@import SpriteKit;
@interface GameScene : SKScene
@property (nonatomic, assing)NSInteger levelNumber;
@end
接着
//Level Selection Scen
//Select.m
#import "GameScene.h"
... Rest of your code
User selects level and you prepare for transition and call
- (void)transitionToLevel:(NSInteger)level{
GameScene *destinationScene = [[GameScene alloc] initWithSize:self.size];
destinationScene.levelNumber = level;
SKTransition *transition = //Set up transition here
[self.view presentScene:destinationScene transition:transition];
}
并在你的游戏场景的实现
//GameScene.m
#import "GameScene.h"
@implementation GameScene
-(id)initWithSize:(CGSize){
if (self.levelNumber == 1){
[self playLevelOne]; //Where this is where you play your game
}
else if (self.levelNumber == 2){
[self playLevelTwo];
}
}
- (void)playLevelOne{
//Level Implementation
}
- (void)playLevelTwo{
//Level Implementation
}
@end
您可以为计划支持的每个级别执行此操作
// First Scene
NSUserDefaults.standardUserDefaults().setInteger(12345, forKey:"SCORE")
// Second Scene
if let myScore: AnyObject = NSUserDefaults.standardUserDefaults().objectForKey("SCORE") {
println(myScore)
finalScore = myScore as IntegerLiteralType
}
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